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Tag: "count" at biology news

No magic tomato? Study breaks link between lycopene and prostate cancer prevention

Tomatoes might be nutritious and tasty, but don’t count on them to prevent prostate cancer. In the May issue of Cancer Epidemiology, Biomarkers & Prevention, researchers based at the National Cancer Institute and Fred Hutchinson Cancer Research Center report that lycopene, an antioxidant predominatel...

Indicators for risk of heart disease are higher in passive smokers

... another inflammatory marker, and white blood cell count in participants with elevated cotinine levels. They found no significant association. The effect levels seen for fibrinogen and homocysteine were about twice as high when measuring cotinine levels compared to previous studies based on self-reporte...

Researchers first to map gene that regulates adult stem cell growth

...d clinically, such as for ramping up the stem cell count in cancer patients undergoing chemotherapy and bone marrow transplantation. The researchers agreed that this very process is not only interesting, but important because of its usefulness in a wide variety of future genetics studies. "We'r...

Common blood test can help distinguish between mononucleosis and tonsillitis

... white blood cell count. Total white blood cell count was significantly increased in the tonsillitis gro.... 11,400 cells per microliter), but the lymphocyte count was higher in the mononucleosis group (6,490 cells per microliter vs. 1,590 cells per microliter). ...

Cornell researcher helping develop quick, cheap HIV/AIDS test

...factors -- CD4 T-cell count, or CD4+ T-lymphocytes count -- in the blood. "When patients are infected with HIV/AIDS, the number of circulating CD4 T-cells drops significantly," explains Baeumner. "If they get the appropriate retroviral treatment, their life span can be increased by many years. CD4 counts...

Fruit fly gene research may shed light on human disease processes

...mes are produced in each sex. Failure to properly count X chromosomes is lethal to embryos of mammals and flies. That's why biologists want to understand the process of "chromosome counting." Early in his career, Erickson was part of the research team that identified the genes involved in counting Dro...

Fantastic Voyage: A new nanoscale view of the biological world

... potatoes in the refrigerator of another. You can count how many there are and measure how fast they are used and replaced. It is this level of resolution and quantification that MIMS makes possible within cells." Lechene, of Harvard Medical School and Brigham and Women's Hospital in the US, worked w...

Fast test for low blood flow in dogs detects early heart trouble

...w fast blood is flowing. Researchers can actually count the number of beads absorbed into the heart tissue to calculate blood flow. However, calculating blood flow from the 3-D, scanned CT images was more complicated. Researchers used so-called deconvolution mathematical formulae to gauge the speed of ...

First Biodiversity Census of coral reef ecosystems in the NW Hawaiian Islands

...h the diversity found in rainforests and a partial count of organisms living in a tropical aquarium." Information from this effort will be posted on the CReefs website at www.creefs.org , and the cruise can also be followed at www.hawaiianatolls.org and http://sanctuaries.noaa.gov/ . Furthermore, ...

Gene chip technology shows potential for identifying life-threatening blood infection

...d similar - fever and an elevated white blood cell count - making it virtually impossible in many cases even for seasoned doctors to make a diagnosis based on symptoms alone. Non-infectious inflammation is common among ICU patients recovering from surgery, pancreatitis, or trauma from a car accident or fal...

Serengeti patrols cut poaching of buffalo, elephants, rhinos

...erial surveys. It's been impossible to actually count the number of animals that are poached because poaching is illegal and most animals ?apart from elephants and rhinos which are traditionally not eaten ?are caught in snares set by local villagers for their own use or sale. A recent article in Nationa...

Recurrence of a flu pandemic similar to infamous 1918 flu could kill 62 million

...re distributed fairly equally. A simple population count from that period would lead to the conclusion that about 20 percent of all fatalities occurred in the developed world. "But when you look at the data," said Murray, "that number shrinks to about three or four percent." The disparities between the ...

Study shows interruption of antiretroviral therapy increases risk of disease and death

...72 participants infected with HIV with a CD4+ cell count of more than 350 per cubic millimeter to the conti...ed only using antiretroviral therapy when the CD4+ count decreased to less than 250 per cubic millimeter and then stopping therapy when the CD4+ count increa...

AIDS study challenges conventional treatment guidelines for HIV patients

... try to predict how quickly that person's CD4 cell count will reach the danger level at which treatment for... other groups, is to focus on both the current CD4 count and the viral load to estimate how rapidly a person's CD4 cell count will decrease. This approach is...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

...s determine the locations of specific swimmers and count how many swimmers are in the pool. What scientists really want to know is what membrane components are near what other components, how that organization changes over time and how that organization leads to the emergence of function, Boxer said. In ...

Prevention is the best option: fighting autoimmune diseases

...veloped allows us for the first time to accurately count thenumber of regulatory T cells in the body," says Assoc Prof Fazekas. The highly accurate identification and isolation of regulatory T cells was made possible using sophisticated flow cytometry equipment at the Centenary Institute. The machines us...

Genetic snooze button governs timing of spring flowers

... long, dark days of winter, gardeners are known to count the days until spring. Now, scientists have learned, some plants do exactly the same thing. Addressing scientists here today (Aug. 9) at a meeting of the American Society of Plant Biologists, University of Wisconsin-Madison researcher Richard Amasi...

Even a little cooling helps after cardiac arrest

...project is to establish a baseline snail-trematode count in marshes, particularly those slated for restoration. By comparing worm statistics before and after a restoration project, which could include activities such as digging channels or removing non-native plants, the biologists believe that wetlands ma...

How healthy is that marsh? Biologists count parasites

...project is to establish a baseline snail-trematode count in marshes, particularly those slated for restoration. By comparing worm statistics before and after a restoration project, which could include activities such as digging channels or removing non-native plants, the biologists believe that wetlands ma...

A new tool against brain disease

... higher the patient's viral load and the lower the count of helper T cells, said Walker. When they co... diagnostic tool, said Walker. "Currently, we just count the number of helper T cells to decide when to treat someone, but we are excited about the possibili...

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